This information has been taken directly from the Smittskyddsinstitutet
(Swedish Institute for Communicable Disease Control) website:

It is
the mission of Smittskyddsinstitutet (Swedish Institute for Communicable
Disease Control), a government expert agency, to monitor the
epidemiological situation for communicable diseases in humans. It is
also responsible for promoting protection against such diseases.

Sweden is relatively well protected from the spread of communicable
diseases. Good hygienic conditions prevail and public health is well
developed. Medical progress and preventative measures protect the
Swedish population from infections that, in other countries of the
world, may cause large scale disasters.

However in spite of this, communicable disease prevention must be
continuously maintained at a high level. It is vital that Sweden
continues to vaccinate, trace infections, fight outbreaks, engage in
research and disseminate information on communicable diseases. Otherwise
there is a risk that diseases that are rare in Sweden, but which claim
millions of victims in other parts of the world, will return. A high
level of preparedness must also be maintained in order to prevent new
infections and avian influenza from gaining a foothold in Sweden.